Storage battery.



E. 0. EKSTRGMBR. STORAGE BATTERY.

APPLICATION FILED JUNE 3, 1907.

Fig- 1- UNTTE STAT EDWARD G. EKSTROMER, OF BOSTON,

MASSACHUSETTS, ASSIGNOR TO JOSEPH C. KENT, TRUSTEE.

STORAGE BATTERY.

Specification of Letters Patent.

Patent ed March 9, 1909.

Application filed June 3, 1307. Serial No. 376,895.-

To all whom it may concern:

Be it known that I, EDWARD C. EKSTR 6- MER, a subject of the King ofGreat Britain, and a resident of Boston, in the county of Suffolk andState of Massachusetts, have invented a new and useful Improvement inStorage Batteries, of which the following is a specification.

My invention relates to storage batteries and its object is to provide aconvenient and efl'ective means for closing the battery casing and forholding the elements thereof and their separators in position while thebattery is in service.

For the purpose of more fully disclosing my invention I have illustratedin the drawings which accompany and form a part of this specificationone simple embodiment thereof which has been found to give good resultsin practice; but it will be understood that many modifications may bemade therein by those skilled in the art without departing from thespirit of my invention.

In the drawings :-Figure 1 is a perspective view, partly in section, ofa storage battery constructed in accordance with my invention. Fig. 2 isa perspective view of the cover of said battery.

In the figures, I represents the hard rubber casing of a storage batterycontaining the plates or elements 2, separated by wooden and hard rubberseparators shown, respectively, at 5 and 6. The positive platesterminate in upwardly extending lugs 3 to the tops of which iselectrically connected the conducting strap 4, while the negative platesterminate in similar lugs 3 connected with the strap 4.

It is essential in the operation of storage batteries that the wooden orother separators of the plates be maintained in position and for thispurpose it is necessary to provide means whereby they may be preventedfrom rising and thereby exposing the lower ends of the plates. Theparticular means shown in the accompanying drawings whereby I accomplishthis result consists in the cover comprising the plate 7 of hard rubberor other suitable insulating material, which as shown, is adapted to fitand thereby close the battery casing, and which is provided withdepending members extending transversely to the battery elements andtheir separators. The members 8, Sfmay be formed integral with the coverand are so arranged that their lower edges are in contact with the upperedges of the battery elements when said cover is in position. The cover7 may be provided with apertures 9, 9, through which electrical contactma be made with the straps 4, 4 by any suitab e means, and -may beprovided also with a vent 10.

It will be obvious that by means of my invention I provide a very simpleand effective device for preventing any upward movement of theseparators during the employment of the battery.

I claim:

In a storage battery having metallic elements and wooden separatorstherefor, a cover comprising a plate of non-flexible insulating materialadapted to fit and thereby close the battery casing and provided withdepending members formed integral with said plate, said de )endingmembers being arranged transversely to sa d metallic elements and woodenseparators and having their lower edges in contact with all of saidelements when said cover is in position.

In testimony whereof,I have hereunto subscribed my name this first dayof June 19,07.

EDWARD C. EKSTR OMER.

Witnesses CHARLES C. KUR'rz, GEO. K. Woonwon'rn.

